401515383 has 4 divisors (see below), whose sum is σ = 535353848. Its totient is φ = 267676920.

The previous prime is 401515351. The next prime is 401515417. The reversal of 401515383 is 383515104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 401515383 - 2⁵ = 401515351 is a prime.

It is a super-2 number, since 2×401515383² = 322429205571273378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401515383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401515483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66919228 + ... + 66919233.

It is an arithmetic number, because the mean of its divisors is an integer number (133838462).

Almost surely, 2^401515383 is an apocalyptic number.

401515383 is a deficient number, since it is larger than the sum of its proper divisors (133838465).

401515383 is a wasteful number, since it uses less digits than its factorization.

401515383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133838464.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 401515383 is about 20037.8487617808. The cubic root of 401515383 is about 737.7355803182.

The spelling of 401515383 in words is "four hundred one million, five hundred fifteen thousand, three hundred eighty-three".