401572122 has 32 divisors (see below), whose sum is σ = 940270464. Its totient is φ = 111936000.

The previous prime is 401572117. The next prime is 401572123. The reversal of 401572122 is 221275104.

It is a super-2 number, since 2×401572122² = 322520338335165768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401572092 and 401572101.

It is not an unprimeable number, because it can be changed into a prime (401572123) 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, 114879 + ... + 118322.

It is an arithmetic number, because the mean of its divisors is an integer number (29383452).

Almost surely, 2^401572122 is an apocalyptic number.

401572122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

401572122 is an abundant number, since it is smaller than the sum of its proper divisors (538698342).

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

401572122 is a wasteful number, since it uses less digits than its factorization.

401572122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233254.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 401572122 is about 20039.2645074613. The cubic root of 401572122 is about 737.7703290139.

The spelling of 401572122 in words is "four hundred one million, five hundred seventy-two thousand, one hundred twenty-two".