38401455 has 16 divisors (see below), whose sum is σ = 61591680. Its totient is φ = 20431008.

The previous prime is 38401439. The next prime is 38401457. The reversal of 38401455 is 55410483.

It is not a de Polignac number, because 38401455 - 2⁴ = 38401439 is a prime.

It is a super-2 number, since 2×38401455² = 2949343492234050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38401457) 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, 3756 + ... + 9534.

It is an arithmetic number, because the mean of its divisors is an integer number (3849480).

Almost surely, 2^38401455 is an apocalyptic number.

38401455 is a deficient number, since it is larger than the sum of its proper divisors (23190225).

38401455 is a wasteful number, since it uses less digits than its factorization.

38401455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 38401455 is about 6196.8907526275. The cubic root of 38401455 is about 337.3773271590.

Subtracting 38401455 from its reverse (55410483), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 38401455 in words is "thirty-eight million, four hundred one thousand, four hundred fifty-five".