1421542770 has 16 divisors (see below), whose sum is σ = 3411702720. Its totient is φ = 379078064.

The previous prime is 1421542763. The next prime is 1421542813. The reversal of 1421542770 is 772451241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23692350 + ... + 23692409.

It is an arithmetic number, because the mean of its divisors is an integer number (213231420).

Almost surely, 2^1421542770 is an apocalyptic number.

1421542770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421542770 is an abundant number, since it is smaller than the sum of its proper divisors (1990159950).

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

1421542770 is a wasteful number, since it uses less digits than its factorization.

1421542770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47384769.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 1421542770 is about 37703.3522382294. The cubic root of 1421542770 is about 1124.3977734806.

The spelling of 1421542770 in words is "one billion, four hundred twenty-one million, five hundred forty-two thousand, seven hundred seventy".