100040479 has 8 divisors (see below), whose sum is σ = 124725888. Its totient is φ = 77953560.

The previous prime is 100040477. The next prime is 100040483. The reversal of 100040479 is 974040001.

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 100040479 - 2¹ = 100040477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100040471) 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, 649537 + ... + 649690.

It is an arithmetic number, because the mean of its divisors is an integer number (15590736).

Almost surely, 2^100040479 is an apocalyptic number.

100040479 is a deficient number, since it is larger than the sum of its proper divisors (24685409).

100040479 is a wasteful number, since it uses less digits than its factorization.

100040479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299245.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 100040479 is about 10002.0237452228. The cubic root of 100040479 is about 464.2215038708.

The spelling of 100040479 in words is "one hundred million, forty thousand, four hundred seventy-nine".