120400707 has 8 divisors (see below), whose sum is σ = 183467776. Its totient is φ = 68800392.

The previous prime is 120400703. The next prime is 120400727. The reversal of 120400707 is 707004021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120400707 - 2² = 120400703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5733367 = 120400707 / (1 + 2 + 0 + 4 + 0 + 0 + 7 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120400703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2866663 + ... + 2866704.

It is an arithmetic number, because the mean of its divisors is an integer number (22933472).

Almost surely, 2^120400707 is an apocalyptic number.

120400707 is a deficient number, since it is larger than the sum of its proper divisors (63067069).

120400707 is an equidigital number, since it uses as much as digits as its factorization.

120400707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5733377.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 120400707 is about 10972.7255957670. The cubic root of 120400707 is about 493.7908207024.

Adding to 120400707 its reverse (707004021), we get a palindrome (827404728).

The spelling of 120400707 in words is "one hundred twenty million, four hundred thousand, seven hundred seven".