43404012021000 has 64 divisors (see below), whose sum is σ = 135420517514880. Its totient is φ = 11574403204800.

The previous prime is 43404012020939. The next prime is 43404012021089. The reversal of 43404012021000 is 12021040434.

It is a super-2 number, since 2×43404012021000² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7233999004 + ... + 7234005003.

It is an arithmetic number, because the mean of its divisors is an integer number (2115945586170).

Almost surely, 2^{43404012021000} is an apocalyptic number.

43404012021000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43404012021000 is an abundant number, since it is smaller than the sum of its proper divisors (92016505493880).

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

43404012021000 is a wasteful number, since it uses less digits than its factorization.

43404012021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14468004031 (or 14468004017 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 43404012021000 its reverse (12021040434), we get a palindrome (43416033061434).

The spelling of 43404012021000 in words is "forty-three trillion, four hundred four billion, twelve million, twenty-one thousand".