10400454 has 16 divisors (see below), whose sum is σ = 23112240. Its totient is φ = 3466800.

The previous prime is 10400449. The next prime is 10400479. The reversal of 10400454 is 45400401.

It is a super-2 number, since 2×10400454² = 216338886812232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96247 + ... + 96354.

It is an arithmetic number, because the mean of its divisors is an integer number (1444515).

Almost surely, 2^10400454 is an apocalyptic number.

10400454 is an abundant number, since it is smaller than the sum of its proper divisors (12711786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10400454 is a wasteful number, since it uses less digits than its factorization.

10400454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192612 (or 192606 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 10400454 is about 3224.9734882631. The cubic root of 10400454 is about 218.2817527991.

Adding to 10400454 its reverse (45400401), we get a palindrome (55800855).

The spelling of 10400454 in words is "ten million, four hundred thousand, four hundred fifty-four".