1426479021 has 48 divisors (see below), whose sum is σ = 2362913280. Its totient is φ = 820812960.

The previous prime is 1426478987. The next prime is 1426479023. The reversal of 1426479021 is 1209746241.

It is a happy number.

1426479021 is a `hidden beast` number, since 1 + 4 + 2 + 647 + 9 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 1426479021 - 2¹⁴ = 1426462637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426479023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 314250 + ... + 318756.

It is an arithmetic number, because the mean of its divisors is an integer number (49227360).

Almost surely, 2^1426479021 is an apocalyptic number.

1426479021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1426479021 is a deficient number, since it is larger than the sum of its proper divisors (936434259).

1426479021 is a wasteful number, since it uses less digits than its factorization.

1426479021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686 (or 4683 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1426479021 is about 37768.7572075121. The cubic root of 1426479021 is about 1125.6977455264.

The spelling of 1426479021 in words is "one billion, four hundred twenty-six million, four hundred seventy-nine thousand, twenty-one".