401796129 has 24 divisors (see below), whose sum is σ = 625991328. Its totient is φ = 228567360.

The previous prime is 401796013. The next prime is 401796137. The reversal of 401796129 is 921697104.

It is not a de Polignac number, because 401796129 - 2⁸ = 401795873 is a prime.

It is a super-2 number, since 2×401796129² = 322880258558769282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401796929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27349 + ... + 39389.

It is an arithmetic number, because the mean of its divisors is an integer number (26082972).

Almost surely, 2^401796129 is an apocalyptic number.

401796129 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

401796129 is a deficient number, since it is larger than the sum of its proper divisors (224195199).

401796129 is a wasteful number, since it uses less digits than its factorization.

401796129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12285 (or 12278 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 401796129 is about 20044.8529303659. The cubic root of 401796129 is about 737.9074857775.

The spelling of 401796129 in words is "four hundred one million, seven hundred ninety-six thousand, one hundred twenty-nine".