1464047642 has 4 divisors (see below), whose sum is σ = 2196071466. Its totient is φ = 732023820.

The previous prime is 1464047591. The next prime is 1464047657. The reversal of 1464047642 is 2467404641.

It is a happy number.

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., 1206798121 + 257249521 = 34739^2 + 16039^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1464047596 and 1464047605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 366011909 + ... + 366011912.

Almost surely, 2^1464047642 is an apocalyptic number.

1464047642 is a deficient number, since it is larger than the sum of its proper divisors (732023824).

1464047642 is an equidigital number, since it uses as much as digits as its factorization.

1464047642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732023823.

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 1464047642 is about 38262.8755061613. The cubic root of 1464047642 is about 1135.4945911226.

The spelling of 1464047642 in words is "one billion, four hundred sixty-four million, forty-seven thousand, six hundred forty-two".