40099260 has 48 divisors (see below), whose sum is σ = 118885536. Its totient is φ = 10063872.

The previous prime is 40099249. The next prime is 40099261. The reversal of 40099260 is 6299004.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40099261) 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, 18637 + ... + 20676.

It is an arithmetic number, because the mean of its divisors is an integer number (2476782).

Almost surely, 2^40099260 is an apocalyptic number.

It is an amenable number.

40099260 is an abundant number, since it is smaller than the sum of its proper divisors (78786276).

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

40099260 is a wasteful number, since it uses less digits than its factorization.

40099260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39342 (or 39340 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 40099260 is about 6332.3976501796. The cubic root of 40099260 is about 342.2778426835.

The spelling of 40099260 in words is "forty million, ninety-nine thousand, two hundred sixty".