1240553020 has 48 divisors (see below), whose sum is σ = 3057808320. Its totient is φ = 413835264.

The previous prime is 1240553011. The next prime is 1240553023. The reversal of 1240553020 is 203550421.

It is a super-2 number, since 2×1240553020² = 3077943590862240800, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1240552982 and 1240553000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240553023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114565 + ... + 124924.

It is an arithmetic number, because the mean of its divisors is an integer number (63704340).

Almost surely, 2^1240553020 is an apocalyptic number.

1240553020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240553020 is an abundant number, since it is smaller than the sum of its proper divisors (1817255300).

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

1240553020 is a wasteful number, since it uses less digits than its factorization.

1240553020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239542 (or 239540 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1240553020 is about 35221.4852043465. The cubic root of 1240553020 is about 1074.4967595870.

The spelling of 1240553020 in words is "one billion, two hundred forty million, five hundred fifty-three thousand, twenty".