1242764029 has 8 divisors (see below), whose sum is σ = 1374533720. Its totient is φ = 1116161856.

The previous prime is 1242764021. The next prime is 1242764051. The reversal of 1242764029 is 9204672421.

It can be written as a sum of positive squares in 4 ways, for example, as 218892025 + 1023872004 = 14795^2 + 31998^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1242764029 - 2³ = 1242764021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242764021) 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, 1291374 + ... + 1292335.

It is an arithmetic number, because the mean of its divisors is an integer number (171816715).

Almost surely, 2^1242764029 is an apocalyptic number.

It is an amenable number.

1242764029 is a deficient number, since it is larger than the sum of its proper divisors (131769691).

1242764029 is a wasteful number, since it uses less digits than its factorization.

1242764029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583759.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1242764029 is about 35252.8584514788. The cubic root of 1242764029 is about 1075.1347309770.

The spelling of 1242764029 in words is "one billion, two hundred forty-two million, seven hundred sixty-four thousand, twenty-nine".