401552040 has 32 divisors (see below), whose sum is σ = 1204656480. Its totient is φ = 107080512.

The previous prime is 401552033. The next prime is 401552051. The reversal of 401552040 is 40255104.

It is a super-2 number, since 2×401552040² = 322488081656323200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401551998 and 401552016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673014 + ... + 1673253.

It is an arithmetic number, because the mean of its divisors is an integer number (37645515).

Almost surely, 2^401552040 is an apocalyptic number.

401552040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401552040 is an abundant number, since it is smaller than the sum of its proper divisors (803104440).

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

401552040 is a wasteful number, since it uses less digits than its factorization.

401552040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346281 (or 3346277 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 401552040 is about 20038.7634349029. The cubic root of 401552040 is about 737.7580305583.

It can be divided in two parts, 40155 and 2040, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 401552040 in words is "four hundred one million, five hundred fifty-two thousand, forty".