1420820742 has 32 divisors (see below), whose sum is σ = 3134816640. Its totient is φ = 425712320.

The previous prime is 1420820717. The next prime is 1420820743. The reversal of 1420820742 is 2470280241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420820743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115068 + ... + 126815.

It is an arithmetic number, because the mean of its divisors is an integer number (97963020).

Almost surely, 2^1420820742 is an apocalyptic number.

1420820742 is an abundant number, since it is smaller than the sum of its proper divisors (1713995898).

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

1420820742 is a wasteful number, since it uses less digits than its factorization.

1420820742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241988.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 1420820742 is about 37693.7759053136. The cubic root of 1420820742 is about 1124.2073737304.

The spelling of 1420820742 in words is "one billion, four hundred twenty million, eight hundred twenty thousand, seven hundred forty-two".