140297472 has 108 divisors (see below), whose sum is σ = 462352800. Its totient is φ = 40080384.

The previous prime is 140297471. The next prime is 140297489. The reversal of 140297472 is 274792041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140297471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11779 + ... + 20477.

Almost surely, 2^140297472 is an apocalyptic number.

140297472 is a gapful number since it is divisible by the number (12) 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 140297472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231176400).

140297472 is an abundant number, since it is smaller than the sum of its proper divisors (322055328).

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

140297472 is an equidigital number, since it uses as much as digits as its factorization.

140297472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728 (or 8711 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 140297472 is about 11844.7233821647. The cubic root of 140297472 is about 519.6169170639.

The spelling of 140297472 in words is "one hundred forty million, two hundred ninety-seven thousand, four hundred seventy-two".