1421544476 has 24 divisors (see below), whose sum is σ = 2751039984. Its totient is φ = 637303680.

The previous prime is 1421544473. The next prime is 1421544479. The reversal of 1421544476 is 6744451241.

It is an interprime number because it is at equal distance from previous prime (1421544473) and next prime (1421544479).

It is a super-2 number, since 2×1421544476² = 4041577394492229152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421544473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218075 + ... + 224498.

It is an arithmetic number, because the mean of its divisors is an integer number (114626666).

Almost surely, 2^1421544476 is an apocalyptic number.

It is an amenable number.

1421544476 is a deficient number, since it is larger than the sum of its proper divisors (1329495508).

1421544476 is a wasteful number, since it uses less digits than its factorization.

1421544476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442661 (or 442659 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 1421544476 is about 37703.3748622056. The cubic root of 1421544476 is about 1124.3982232788.

The spelling of 1421544476 in words is "one billion, four hundred twenty-one million, five hundred forty-four thousand, four hundred seventy-six".