99400871340 has 72 divisors (see below), whose sum is σ = 301541935968. Its totient is φ = 26504616960.

The previous prime is 99400871321. The next prime is 99400871389. The reversal of 99400871340 is 4317800499.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3619260 + ... + 3646620.

It is an arithmetic number, because the mean of its divisors is an integer number (4188082444).

Almost surely, 2^99400871340 is an apocalyptic number.

99400871340 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

99400871340 is an abundant number, since it is smaller than the sum of its proper divisors (202141064628).

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

99400871340 is a wasteful number, since it uses less digits than its factorization.

99400871340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47559 (or 47554 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 99400871340 in words is "ninety-nine billion, four hundred million, eight hundred seventy-one thousand, three hundred forty".