400003377 has 8 divisors (see below), whose sum is σ = 533450016. Its totient is φ = 266612832.

The previous prime is 400003367. The next prime is 400003381. The reversal of 400003377 is 773300004.

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

It is not a de Polignac number, because 400003377 - 2²⁸ = 131567921 is a prime.

It is a super-2 number, since 2×400003377² = 320005403222808258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400003367) 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, 7213 + ... + 29189.

It is an arithmetic number, because the mean of its divisors is an integer number (66681252).

Almost surely, 2^400003377 is an apocalyptic number.

It is an amenable number.

400003377 is a deficient number, since it is larger than the sum of its proper divisors (133446639).

400003377 is a wasteful number, since it uses less digits than its factorization.

400003377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28047.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 400003377 is about 20000.0844248218. The cubic root of 400003377 is about 736.8083732180.

The spelling of 400003377 in words is "four hundred million, three thousand, three hundred seventy-seven".