140787400 has 96 divisors (see below), whose sum is σ = 355680360. Its totient is φ = 51517440.

The previous prime is 140787389. The next prime is 140787433. The reversal of 140787400 is 4787041.

It can be written as a sum of positive squares in 12 ways, for example, as 459684 + 140327716 = 678^2 + 11846^2 .

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, 449644 + ... + 449956.

Almost surely, 2^140787400 is an apocalyptic number.

140787400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140787400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177840180).

140787400 is an abundant number, since it is smaller than the sum of its proper divisors (214892960).

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

140787400 is a wasteful number, since it uses less digits than its factorization.

140787400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 140787400 is about 11865.3866350827. The cubic root of 140787400 is about 520.2210598570.

The spelling of 140787400 in words is "one hundred forty million, seven hundred eighty-seven thousand, four hundred".