1406377020 has 48 divisors (see below), whose sum is σ = 4169497248. Its totient is φ = 352972800.

The previous prime is 1406377019. The next prime is 1406377033. The reversal of 1406377020 is 207736041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688381 + ... + 690420.

It is an arithmetic number, because the mean of its divisors is an integer number (86864526).

Almost surely, 2^1406377020 is an apocalyptic number.

1406377020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1406377020 is an abundant number, since it is smaller than the sum of its proper divisors (2763120228).

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

1406377020 is a wasteful number, since it uses less digits than its factorization.

1406377020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378830 (or 1378828 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 1406377020 is about 37501.6935617580. The cubic root of 1406377020 is about 1120.3849176552.

The spelling of 1406377020 in words is "one billion, four hundred six million, three hundred seventy-seven thousand, twenty".