1061900520 has 64 divisors (see below), whose sum is σ = 3188592000. Its totient is φ = 282916608.

The previous prime is 1061900479. The next prime is 1061900537. The reversal of 1061900520 is 250091601.

It is a super-2 number, since 2×1061900520² = 2255265428752540800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154926 + ... + 161634.

It is an arithmetic number, because the mean of its divisors is an integer number (49821750).

Almost surely, 2^1061900520 is an apocalyptic number.

1061900520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061900520 is an abundant number, since it is smaller than the sum of its proper divisors (2126691480).

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

1061900520 is a wasteful number, since it uses less digits than its factorization.

1061900520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042 (or 8038 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1061900520 is about 32586.8151251392. The cubic root of 1061900520 is about 1020.2218279552.

The spelling of 1061900520 in words is "one billion, sixty-one million, nine hundred thousand, five hundred twenty".