140307492 has 48 divisors (see below), whose sum is σ = 353380160. Its totient is φ = 43072128.

The previous prime is 140307491. The next prime is 140307499. The reversal of 140307492 is 294703041.

It is a happy number.

It is a super-2 number, since 2×140307492² = 39372384622660128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140307491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95838 + ... + 97290.

Almost surely, 2^140307492 is an apocalyptic number.

140307492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140307492 is an abundant number, since it is smaller than the sum of its proper divisors (213072668).

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

140307492 is a wasteful number, since it uses less digits than its factorization.

140307492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 140307492 is about 11845.1463477662. The cubic root of 140307492 is about 519.6292870601.

The spelling of 140307492 in words is "one hundred forty million, three hundred seven thousand, four hundred ninety-two".