140628400 has 120 divisors (see below), whose sum is σ = 380832768. Its totient is φ = 49440000.

The previous prime is 140628391. The next prime is 140628409. The reversal of 140628400 is 4826041.

It is an interprime number because it is at equal distance from previous prime (140628391) and next prime (140628409).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (140628409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135885 + ... + 136915.

Almost surely, 2^140628400 is an apocalyptic number.

140628400 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 140628400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190416384).

140628400 is an abundant number, since it is smaller than the sum of its proper divisors (240204368).

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

140628400 is a wasteful number, since it uses less digits than its factorization.

140628400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 140628400 is about 11858.6845813522. The cubic root of 140628400 is about 520.0251467129.

The spelling of 140628400 in words is "one hundred forty million, six hundred twenty-eight thousand, four hundred".