1426447020 has 48 divisors (see below), whose sum is σ = 4122897408. Its totient is φ = 368114880.

The previous prime is 1426447007. The next prime is 1426447027. The reversal of 1426447020 is 207446241.

It is a super-2 number, since 2×1426447020² = 4069502201733760800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1426447027) 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, 381594 + ... + 385313.

It is an arithmetic number, because the mean of its divisors is an integer number (85893696).

Almost surely, 2^1426447020 is an apocalyptic number.

1426447020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1426447020 is an abundant number, since it is smaller than the sum of its proper divisors (2696450388).

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

1426447020 is a wasteful number, since it uses less digits than its factorization.

1426447020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766950 (or 766948 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 1426447020 is about 37768.3335613315. Note that the first 3 decimals coincide. The cubic root of 1426447020 is about 1125.6893276615.

The spelling of 1426447020 in words is "one billion, four hundred twenty-six million, four hundred forty-seven thousand, twenty".