1234640474 has 4 divisors (see below), whose sum is σ = 1851960714. Its totient is φ = 617320236.

The previous prime is 1234640411. The next prime is 1234640489. The reversal of 1234640474 is 4740464321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 947100625 + 287539849 = 30775^2 + 16957^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308660117 + ... + 308660120.

Almost surely, 2^1234640474 is an apocalyptic number.

1234640474 is a deficient number, since it is larger than the sum of its proper divisors (617320240).

1234640474 is an equidigital number, since it uses as much as digits as its factorization.

1234640474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617320239.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 1234640474 is about 35137.4511596957. The cubic root of 1234640474 is about 1072.7870029537.

The spelling of 1234640474 in words is "one billion, two hundred thirty-four million, six hundred forty thousand, four hundred seventy-four".