40429084 has 18 divisors (see below), whose sum is σ = 73161312. Its totient is φ = 19528200.

The previous prime is 40429069. The next prime is 40429091. The reversal of 40429084 is 48092404.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70519 + ... + 71089.

Almost surely, 2^40429084 is an apocalyptic number.

It is an amenable number.

40429084 is a deficient number, since it is larger than the sum of its proper divisors (32732228).

40429084 is an equidigital number, since it uses as much as digits as its factorization.

40429084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40429084 is about 6358.3869023519. The cubic root of 40429084 is about 343.2137147835.

Multiplying 40429084 by its sum of digits (31), we get a square (1253301604 = 35402²).

40429084 divided by its sum of digits (31) gives a square (1304164 = 1142²).

The spelling of 40429084 in words is "forty million, four hundred twenty-nine thousand, eighty-four".