401542933 has 8 divisors (see below), whose sum is σ = 440272800. Its totient is φ = 363184080.

The previous prime is 401542919. The next prime is 401542963. The reversal of 401542933 is 339245104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401542933 - 2²⁵ = 367988501 is a prime.

It is a super-2 number, since 2×401542933² = 322473454084484978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401542895 and 401542904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401542963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90483 + ... + 94816.

It is an arithmetic number, because the mean of its divisors is an integer number (55034100).

Almost surely, 2^401542933 is an apocalyptic number.

It is an amenable number.

401542933 is a deficient number, since it is larger than the sum of its proper divisors (38729867).

401542933 is a wasteful number, since it uses less digits than its factorization.

401542933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185507.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 401542933 is about 20038.5361990341. The cubic root of 401542933 is about 737.7524531881.

The spelling of 401542933 in words is "four hundred one million, five hundred forty-two thousand, nine hundred thirty-three".