140906304 has 280 divisors, whose sum is σ = 522232128. Its totient is φ = 36495360.

The previous prime is 140906287. The next prime is 140906321. The reversal of 140906304 is 403609041.

It is an interprime number because it is at equal distance from previous prime (140906287) and next prime (140906321).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 398992 + ... + 399344.

Almost surely, 2^140906304 is an apocalyptic number.

140906304 is a gapful number since it is divisible by the number (14) 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 140906304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261116064).

140906304 is an abundant number, since it is smaller than the sum of its proper divisors (381325824).

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

140906304 is a wasteful number, since it uses less digits than its factorization.

140906304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 140906304 is about 11870.3961180746. The cubic root of 140906304 is about 520.3674720103.

The spelling of 140906304 in words is "one hundred forty million, nine hundred six thousand, three hundred four".