1005555372 has 24 divisors (see below), whose sum is σ = 2484313776. Its totient is φ = 315468288.

The previous prime is 1005555361. The next prime is 1005555413. The reversal of 1005555372 is 2735555001.

It is a super-2 number, since 2×1005555372² = 2022283212316116768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2464393 + ... + 2464800.

It is an arithmetic number, because the mean of its divisors is an integer number (103513074).

Almost surely, 2^1005555372 is an apocalyptic number.

1005555372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1005555372 is an abundant number, since it is smaller than the sum of its proper divisors (1478758404).

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

1005555372 is a wasteful number, since it uses less digits than its factorization.

1005555372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929217 (or 4929215 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 1005555372 is about 31710.4930898275. The cubic root of 1005555372 is about 1001.8483720823.

The spelling of 1005555372 in words is "one billion, five million, five hundred fifty-five thousand, three hundred seventy-two".