1055146620 has 288 divisors, whose sum is σ = 3474938880. Its totient is φ = 238515200.

The previous prime is 1055146601. The next prime is 1055146639. The reversal of 1055146620 is 266415501.

It is an interprime number because it is at equal distance from previous prime (1055146601) and next prime (1055146639).

It is a super-2 number, since 2×1055146620² = 2226668779394848800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11855536 + ... + 11855624.

It is an arithmetic number, because the mean of its divisors is an integer number (12065760).

Almost surely, 2^1055146620 is an apocalyptic number.

1055146620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055146620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737469440).

1055146620 is an abundant number, since it is smaller than the sum of its proper divisors (2419792260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055146620 is a wasteful number, since it uses less digits than its factorization.

1055146620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1055146620 is about 32483.0204876332. The cubic root of 1055146620 is about 1018.0542877193.

The spelling of 1055146620 in words is "one billion, fifty-five million, one hundred forty-six thousand, six hundred twenty".