40149387400 has 48 divisors (see below), whose sum is σ = 93399379200. Its totient is φ = 16050799680.

The previous prime is 40149387371. The next prime is 40149387401. The reversal of 40149387400 is 478394104.

It is a super-2 number, since 2×40149387400² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (40149387401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 309541 + ... + 419659.

It is an arithmetic number, because the mean of its divisors is an integer number (1945820400).

Almost surely, 2^40149387400 is an apocalyptic number.

40149387400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40149387400 is an abundant number, since it is smaller than the sum of its proper divisors (53249991800).

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

40149387400 is a wasteful number, since it uses less digits than its factorization.

40149387400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111958 (or 111949 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 40149387400 in words is "forty billion, one hundred forty-nine million, three hundred eighty-seven thousand, four hundred".